<template>
  <!-- max不知道什么时候拿到，所以用watch来监听 -->
  <div class="mui-numbox" data-numbox-min="1" :data-numbox-max="max">
    <button class="mui-btn mui-btn-numbox-minus" type="button">-</button>
    <!-- 新属性 值改变的时候用@change调用方法 -->
    <input
      id="test"
      class="mui-input-numbox"
      type="number"
      value="1"
      @change="countchanged"
      ref="numbox"
    />
    <button class="mui-btn mui-btn-numbox-plus" type="button" disabled="">
      +
    </button>
  </div>
</template>

<script>
import mui from "../../assets/js/mui.min.js";

export default {
  data() {
    return {
      newmax: "",
    };
  },
  mounted() {
    //初始化选择框组件
    mui(".mui-numbox").numbox();
  },

  // watch: {
  //   max: function(newvue, oldvue) {
  //     mui(Selector)
  //       .numbox()
  //       .setOption("max",newvue );
  //   }
  // },
  watch: {
    max(newvue, oldvue) {
      mui(".mui-numbox").numbox().setOption("max", newvue);
    },
  },

  props: ["max"],
  methods: {
    countchanged() {
      this.$emit("getnumcount", parseInt(this.$refs.numbox.value));
    },
  },
};
</script>

<style>
</style>


